Heat-retaining pad.



PATENTED SEPT. 8,1903.

I. RICH. HEAT RETAINING PAD.

APPLICATION FILED MAR. 2. 1903.

N0 MODEL.

as will enable others skilled in the art to which forth, and pointed outparticularly in the ings, in whichfragmentary view in perspective of theparts ,tion.

to a dish of food or the contents of a coffee- Patented September 8,1903.

PATENT QFFICE- JEROME RICH, or JACKSON, MICHIGAN.

HEAT-RETAlNING PAD.

SPEGIIETICATiON forming part of Letters Patent No. 738,573, datedSeptember 8, 1903.

. Application filed March 2,19os.

To all whom/it may concern: 1

Be it known that I, JEROME RICH, a citizen of the United States,residing at Jackson, in the county of Jackson, State of Michigan, haveinvented certain new and useful 1m provements in Heat- Retaining Pads;and I do declare the following to be a full, clear, and exactdescription of the invention, such,

it appertains to make and use the same, refer ence being had to theaccompanying drawings, and to the figures of reference marked thereon,which form a part of this specifica- This invention relates to aportable heat-retainer and it consists in the construction andarrangement of parts hereinafter fully set claims.

The object of the invention is to, provide simple and efficient meansfor retainingv heat, whereinthe arrangementis such as to enable theretained heat to be given off or imparted pot or other retaining vessel,whereby said contents may be maintained at a high degree of temperaturefor a considerable time after its removal from the stove.

The above object is attained by the struc ture illustrated in theaccompanying draw- Figure 1 is a perspective view of my improvedheat-retainer and the supportingbasket, in which it is contained when inuse on the table. Fig. 2 is a transverse section, as on dotted lines 2 2of Fig. 1. Fig. 3 is a forming the heat-retaining pad, theheat-retaining substance or material with which said pad is filled beingomitted.

Referring to the characters of reference, 1 designates a receptacleformed, preferably, of sheet metal and preferably of annular shape. Thisreceptacle is provided with a metallic bottom 2, having a plurality ofapertures 3 therein. A circular disk or plate 4: covers the receptacle 1and affords a surface upon which a dish, vessel, or other article may beplaced to be heated, This disk 4, is provided with a depending circularwall or flange 5,

semi is. 145,648. (No model.)

plate 4 slightly below the top of the annular wall of said receptacle.Lying against the inner face of said wall at the top is aretaining-strand 6, which is formed, preferably, of spring-wire, whichrests upon the margin of the plate 4 and serves to more securely retainitin place. The receptacle 1 is filled with a suitable heat retainingsubstance 7, preferably a proper mixture of sand and cement, and whilesaid filling substance is in a plastic state the plate 4 and itsdepending possible loosening of the plate 4, to which said Wall issecured. The outer margin of a said plate rests upon the cement fillingand is supported thereby. I

Formed in the bottom of the cement filling in line with the apertures 3in the bottom 2 v are the cells 9, into which the heat and flame is acentral opening 11 through the cement filler, whose upper endcommunicates with the central aperture 12 in the top plate 4.

By means of this central aperture a flue is pro vided for the caloriccurrent, which assists in more quickly heating the center of theretaining-pad and at the same time afiords means for radiating the heatfrom the center of said pad and directing it against ,the bottom of adish or receptacle resting upon the plate 4:. v

For the purpose of facilitating the handling of the heat-retaining pad,ears 13 are provided on opposite sides of said pad, into which the endsof the bale 14 are engaged, to enable said pad to be lifted on or ofithe stove. For the purpose of using this heat-retainer at the tableduring a meal, so that the coffee-pot or other vessel be placed upon itand the contents kept hot, a basket 15 is provided having suitablesupporting-legs 16, which raise the bottom thereof above the surface ofthe table, into which the heat-retaining pad may be placed, as shown inFigs. 1 and 2. Surrounding the ILO from the bottom and sides of saidbasket it is provided at the bottom and sides with a lining 18 ofasbestos and other non-conductor of heat, whereby undue radiation ofheat from the heat-retaining pad is prevented except from the uppersurface thereof, and the heat so radiated is utilized by directing itagainst the bottom of a dish or vessel resting upon the plate 4.

It will be noted that when the heat-retaining pad is placed in thebasket 15 the cells 9 in the bottom are closed by the lining of said 20basket, whereby an undue cooling of the pad is obviated by preventingthe escape of heat from said cells.

While I have described this device as a heat-retainer to be used fordomestic pur- 2; poses, it is evident that it may be made to serve as abed-pan and as a foot-warmer as well as for the purposes described.

Having thus fully set forth my invention,

1. In a device for the purpose set forth, the combination of a metallicreceptacle, a filling of material adapted to retain heat, placed in saidreceptacle in plastic form, a flat metallic plate lying upon andcovering the entire top 3 5 of said filling, and means for retainingsaid covering-plate in position.

2. In a heat-retainer, the combination of a metallic receptacle, afilling of heat-retaining material within said receptacle, a plate forcovering the top of said receptacle having a depending vertical wall,said wall being surrounded by and embedded in the filling material.

3. In a device for the purpose set forth, the combination of a metallicreceptacle having a series of apertures through the bottom thereof, afilling of heat-retaining material adapted to be placed in saidreceptacle while in a plastic state, the bottom of said filling havingcells formed therein in line with the openings in the bottom of thereceptacle, a covering-plate, an annular wall depending from said plateand embedded in the filling substance.

In testimony whereof I sign this specification in the presence of twowitnesses.

I JEROME RIOl-I.

Witnesses:

EDWARD ORowE, FRANK EGGLESTON.

